confused and dont know what i am doing - please help -

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post #1 of 6 Old 08-01-2013, 11:39 AM Thread Starter
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2004 WJ 
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confused and dont know what i am doing - please help


my radiator had a leak so i bought a new one and replaced it. what is the smaller looking radiator in front of the big/main radiator? is that some type of transmission cooler? there are four silver lines that run into it (2 on each side)... i didnt want to disconnect those lines because i wasnt sure what they were?? basically i just finagled the big radiator out after taking off the upper hose, lower hose, and resovoir hose... put in new (big) radiator and reconnected hoses...

any help is appreciated

1989 Cherokee (sold)
2000 TJ Wrangler (sold)
2004 TJ Wrangler (sold)
2004 WJ GC (current)
2006 WK GC (current) 5.7L HEMI Limited QDII
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post #2 of 6 Old 08-01-2013, 11:45 AM
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1999 WJ 
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More than likely yes, that's the transmission cooler. I want to say that mine only had 2 lines on 1 side of it though - send and return lines. That may just be a model year thing though, mine's a 99 with a 4.7 and I know they changed the location and line routings etc in different years, and different engines. I'm not sure what the extra 2 lines would be there for, but I'm not an expert by any means.

Easiest thing would be to just trace one or two of the lines and see what they're connected to. A picture would also help to identify the part.
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post #3 of 6 Old 08-01-2013, 01:10 PM
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Trans or power steering cooler
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post #4 of 6 Old 08-01-2013, 01:23 PM
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Is it possible the OP is referring to the A/C condenser? The A/C condenser is a thinner looking coil & fin cooler that is nearly as large as the main radiator. The power steering cooler would be a very small unit compared to the A/C condenser and radiator and on the 2004 (the year of the OP's WJ) the transmission cooler was integrated into the A/C condenser I believe. I am betting on the A/C condenser.

My "stocker" build thread:
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post #5 of 6 Old 08-01-2013, 01:30 PM
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1999 WJ 
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I suppose it's possible, but IIRC I believe the condenser is to the side of the radiator, not mounted in front of it. Again, pics would be very helpful
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post #6 of 6 Old 08-01-2013, 05:03 PM
Double E
2000 Laredo V8
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There's already discussion on this with pics:

For Sale! - 00 Laredo 4.7 Selec-Trac. 215K miles, Leather, aluminum radiator, trans cooler & sunroof.
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